JIN, Y.; XUAN, Y.H.; JIN, Y.S.; SHIN, Y.K.; LEE, K.J. Extraction of Caffeine from Korean Green Tea. Asian Journal of Chemistry, [S. l.], v. 22, n. 4, p. 3076–3082, 2010. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/11515. Acesso em: 23 jul. 2024.